We architect, build, and scale software solutions that drive your business forward. From concept to deployment — precision engineering, every step.
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End-to-end software development consulting tailored to your business needs. We bring deep technical expertise to every engagement.
Bespoke applications built from the ground up. We turn your requirements into robust, scalable, and maintainable software.
full-stackCloud-native solutions on AWS, Azure, and GCP. CI/CD pipelines, infrastructure as code, and production-ready deployments.
infrastructureRESTful and GraphQL APIs designed for performance. Seamless third-party integrations and microservice architectures.
backendCode audits, architecture reviews, and technology assessments. Critical insights for M&A, investment, and risk evaluation.
advisoryMigrate aging systems to modern stacks without disruption. Incremental refactoring, re-platforming, and data migration.
migrationSenior engineers embedded in your team. Bridge skill gaps, accelerate delivery, and mentor your developers.
staffing// how_we_work
A proven methodology refined over years of delivering successful projects. Transparent, iterative, and built for results.
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Deep dive into your business goals, technical landscape, and constraints. We define the roadmap before writing a single line of code.
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System design, technology selection, and proof-of-concept validation. Building the right foundation for long-term success.
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Agile sprints with continuous delivery. Code reviews, testing, and regular demos to keep you in the loop at every stage.
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Production launch with monitoring, documentation, and knowledge transfer. We ensure your team can run and evolve the system confidently.
// why_einundzwanzig
Einundzwanzig LLC is a Florida-based software development consultancy built by engineers who care about craft. We don't just write code — we engineer solutions that stand the test of time.
Our team brings deep expertise across the full technology stack, from system design and backend architecture to cloud infrastructure and frontend interfaces.
// get_in_touch
Have a project in mind? Let's discuss how we can help bring it to life.
● Registered in the State of Florida, USA
● Available for remote & on-site engagements
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Last updated: February 2026
Einundzwanzig LLC is a software development consulting company registered in the State of Florida, USA, located at 3833 Powerline Rd, Suite 201, Fort Lauderdale, FL 33309.
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